After all the cradles and phone holders I made, I have realized that I just wanted something that mounted to the wall that allowed a charge cable to be attached.
And since I move things around a lot I made versions with holes for "3M Command Adhesive Strips" which are my go-to for mounting stuff when I don't want to ruin the paint.
The versions with speaker slots are also good for hanging the charge cable when not in use.
I sized this for my Galaxy S8 with Otter Box case.
Ive made the cavity 15mm thick and 76mm wide. All walls are 5mm thick.
If your phone is wider or thicker you can make the case wider or thinner in witch ever direction necessary.
You may have to do math. if your phone is 82mm wide you'll have to figure out how much more to expand the case. 76mm - 82mm = 6mm. 6mm /76mm=0.08 or 8% so maybe 108% adjustment for width?
Math was not my best subject!
Added a version with a flap to connect to a car vent